Horváth & Partners to Evaluate Deployment of ADX Gaiselberg and Zistersdorf Production Assets for Hydrogen Storage

By January 21, 2021 6   min read  (1002 words)

January 21, 2021 |

Horvath Partners to Evaluate Deployment of ADX Gaiselberg and Zistersdorf Production Assets for Hydrogen Storage

ADX is pleased to advise that it has entered an agreement with Horváth & Partners (Horváth) to undertake a pre-feasibility assessment for hydrogen storage at ADX’s Gaiselberg and Zistersdorf fields in the Vienna Basin as well as the creation of a profitable hydrogen business model which will be complimentary and synergistic with ADX’s current oil & gas energy business (Hydrogen Study).

  • Key Points:
    ADX is well positioned to potentially utilise already identified depleted reservoirs at its Gaiselberg and Zistersdorf fields in the Vienna basin (Fields) for hydrogen storage.
  • The suitability of the Fields is due to their close proximity to major renewable electricity sources that can be used for renewable hydrogen production (Green Hydrogen), availability of high quality reservoirs at suitable depth and excellent gas export infrastructure that can be used for the export of Green Hydrogen or Green Methane (produced by the conversion of Green Hydrogen and CO2 into methane).
  • ADX and Horváth & Partners (Horváth) have entered a consulting agreement with the objective to support building a viable hydrogen business establishing ADX as a provider of large-scale hydrogen and green gas underground storage. The first phase seeks to reach the following milestones:
  1. Utilise Horváth’s extensive hydrogen and green energy network and project experience to establish partnerships with major green energy providers such as the wind power operators next to the Zistersdorf and Gaiselberg fields of ADX.
  2. Establish the technical viability of reservoirs within ADX Fields as large-scale subsurface hydrogen storage facilities as well as the potential of converting Green Hydrogen and carbon dioxide into Green Methane which can be sold through the gas pipeline infrastructure as well as pure hydrogen.
  3. Form a joint venture with one or several green nearby energy providers to access European Green Energy Transformation funding in order to execute a number of projects establishing the technical viability of underground energy storage at the Fields and ADX as a certified participant in Europe’s rapidly expanding energy storage market.

Note: The potential for hydrogen storage is created by anticipated exponential growth in wind and solar energy production in Austria as a result of the recently ratified government directive for a 6 times increase in power generation (source: Austrian Power Grid AG). It is anticipated that during summer the renewable energy facilities will create an excess capacity of around 2 TWh per month. This energy has then to be either “destroyed” or exported at great cost if no large scale energy storage is available.

  • In the anticipated second phase studies ADX and Horváth intend to establish a detailed business plan and financing plan for the large-scale expansion and establishment of a profitable and growing energy storage and green gas business which may be linked to carbon dioxide sequestration.
  • The ability to potentially utilise the Fields for renewable energy storage can create a new business opportunity as well as adding significant value to an asset that would otherwise be an abandonment liability later in field life.
  • This business model can also be expanded into the recently awarded exploration, production and storage licenses in Upper Austria where ADX has secured a ready to drill portfolio of appraisal and exploration opportunities (refer ASX announcement from 11 January 2021)
  • This strategic initiative is possible due to ADX having well positioned onshore operations and infrastructure in a supportive jurisdiction such as Austria enabling ADX to utilise its asset base for low carbon technologies and carbon abatement opportunities.

The Hydrogen Study is expected to be undertaken in two phases. The first is to establish the feasibility of the Fields for hydrogen storage and or green gas production, establish a joint venture partnership with renewable energy producers proximal to the Fields and determine the availability of feasibility project funding. The second phase will be to establish a detailed business and finance plan for a future project.

Horváth is a worldwide management consulting firm originating from Germany. Horváth has approximately 1,000 employees and a turnover of over US$ 250 million with a strong presence in Europe, the United States of America and the United Arab Emirates. It has a proven track record of consulting the creation and implementation of hydrogen businesses with a focus on Germany.

ADX Vienna basin asset potential for H2 storage

ADX can benefit from the expertise and extensive network of Horváth to secure a project which transforms selected depleted gas reservoirs in its Fields into large subsurface hydrogen and green gas storage reservoirs. If successful it is likely to be a profitable business model that can be redeployed on other fields in ADX’s portfolio.

The ADX Fields are ideally located in the centre of Europe, proximal to extensive renewable energy generation infrastructure which is expected to be rapidly expanded due to the recently announced Austrian government target to increase wind and solar generated electricity by a factor of 6 before 2030. This Austrian policy initiative is supported by a commitment from the European Union for the building of a hydrogen based energy landscape backed by a minimum €150-billion
budget of “hydrogen” related grants and loans to be utilised between 2021 and 2027.

ADX has already identified ideally suited reservoirs in terms of depth, pressure, sealing capacity, productivity, well coverage and fluid contents which may be excellent candidates for future hydrogen storage.

An example of a suitable reservoir is shown below, which is a Gaiselberg field Pannonian age reservoir covered with a large number of wells and excellent quality modern 3D seismic. The reservoir has produced around 18 million cubic meters of sweet methane gas at high well rates and is ideally suited for safe hydrogen storage. It is estimated that this single reservoir could hold around 60 GWh of energy as hydrogen (not accounting for potential energy losses when the hydrogen is again brought to surface and possibly used for electricity generation or re-injecting into the ADX pipeline infrastructure).

An additional direct benefit of utilising ADX Fields for Hydrogen storage will be the extension of the life of the Fields and resultant increase in oil and gas profitability due to shared operations and infrastructure.




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